go to http:http://www.keepvid.com/
paste the youtube link (http://www.youtube.com/watch?v=IM3lU2wiUL0)there, then click on download
select 720p
right click the one you want to downolad and save as
go to http:http://www.keepvid.com/
paste the youtube link (http://www.youtube.com/watch?v=IM3lU2wiUL0)there, then click on download
select 720p
right click the one you want to downolad and save as